hscript: bootloader: Take 100% control of efivarfs

We're the executor, we can just commandeer the entire thing, host system
included.  There is very low likelihood of damage to a host system because
we are use umount instead of making the host r/w.

The only thing that could break is `systemctl reboot --firmware`, or a
host-side upgrade of GRUB that somehow changes the path of the EFI stub.

Both of these are almost impossible to encounter on a host that is actually
running the executor.  However, encountering a broken read-only efivarfs
seems to be VERY common in the Installation Environment.

Fixes: ab212730bd ("hscript: bootloader: Set rdwr on 'real' efivarfs")

0 files changed, 0 insertions, 0 deletions